Beware the lure of unethical solar power

Solar energy may be the future. But only if it lets go of the past. International NGO the World Economic Forum has issued a damning report card on the state of the world’s solar panel manufacturing. It may be experiencing rapid growth. It may be one of the cheapest sources of power. But its climate credentials … Continue reading Beware the lure of unethical solar power

An answer to the clean water crisis?

Researchers from the University of South Australia (UniSA) are currently developing and refining a low-cost technique that can derive freshwater from seawater, brackish water or contaminated water – powered by sunlight. Freshwater scarcity is one of the most serious global challenges in the face of a growing population, changing climate and pollution. Currently, 1.42 billion … Continue reading An answer to the clean water crisis?

Solar-powered desalination

A team of Chinese researchers have announced an efficient solar-powered desalination technique that directly uses the Sun’s energy to clean water instead of reverse osmosis. Current desalination plants usually operate by two ways: distilling water by boiling or evaporating it, or using a membrane to separate salt particles from water (reverse osmosis). There has been … Continue reading Solar-powered desalination

Ironing out the bumps in perovskite’s potential

A literal “trick of the light” can detect imperfections in perovskite solar cells, Australian scientists say, boosting their efficiency to match that of existing silicon-based cells. There is much excitement around the potential of perovskite to provide cheap and abundant solar energy, and to date they have proven efficient on a small scale. However, as … Continue reading Ironing out the bumps in perovskite’s potential